100 LED 10m Premier Christmas Indoor Outdoor Multi Function Battery Operated String Lights with Timer in Rainbow. Brighten up your home this Christmas with these battery operated multi function string lights by Premier Decorations. LEDs are spaced approximately 10cm apart on a green cable, meaning that they can easily blend into most Christmas scenes. This set requires 3x 'AA' batteries (not supplied) and has a 30cm lead from the weatherproof battery box to the first bulb. Function changing button is located on the battery box (static, combination, in waves, sequential, slow glow, chasing/flash, slow fade and twinkle/flash). Featuring a memory chip so that the previous setting is remembered, and 6 hour on / 18 hour off timer function that will help to preserve the life of your batteries. Suitable for both indoor and outdoor use, with an IP44 rating meaning that this set is not waterproof, but can withstand light splashes. Not just for Christmas, this set can be used at any point of the year and in a variety of ways, ideal for providing ambient lighting and creating eye catching scenes